Dynamic Behavior of Bound Interlayer Excitons in Interlayer-Doped Cs₃Bi₂Br₉ Vacancy-Ordered Perovskite.

ABSTRACT: Interlayer doping of the vacancy-ordered 2D perovskite Cs₃Bi₂Br₉ (CBB) enables the formation of bound interlayer excitons (BIEs), a unique charge-transfer excited state within the layered solid. BIEs previously reported with silver (Ag⁺) as an interlayer dopant exhibited bright broadband photoluminescence (PL) with prolonged lifetime at room temperature, offering potential applications in efficient white light emission, photocatalysis, and optoelectronics. However, the dynamic behavior of radiation and excited carriers remains poorly understood due to the limitations of ensemble spectroscopic measurements. Here, we investigate the temperature-dependent dynamics of Ag-doped Cs₃Bi₂Br₉ (Ag-CBB) using single-particle

SUBMITTER: Moon K 

PROVIDER: S-EPMC12574210 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature